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Overheat (OH)/Fan Fail
Connect an LED cable to pins 7 and 8 of the Front Control Panel to use the Overheat/Fan
Fail LED connections. The LED on pin 8 provides warnings of overheating or fan failure.
Refer to the tables below for pin definitions.
OH/Fan Fail Indicator
Status
State
Definition
Off
Normal
On
Overheat
Flashing
Fan Fail
NIC1/NIC2 (LAN1/LAN2)
The Network Interface Controller (NIC) LED connection for LAN port 1 is located on pins
11 and 12 of JF1, and LAN port 2 is on pins 9 and 10. Attach the NIC LED cables here to
display network activity. Refer to the table below for pin definitions.
Power Button
PWR
Reset Button
Reset
3.3V
3.3V
3.3V Stby
3.3V Stby
3.3V
3.3V Stby
X
NMI
NIC1/NIC2 LED
Pin Definitions (JF1)
Pin# Definition
9
3.3V Stby
10
NIC 2 Link LED
11
3.3V Stby
12
NIC 1 Link LED
1
2
Ground
Ground
X
1
OH/Fan Fail LED
3
NIC2 Link LED
2
NIC1 Link LED
HDD LED
PWR LED
X
Ground
19
20
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Chapter 2: Installation
OH/Fan Fail LED
Pin Definitions (JF1)
Pin# Definition
7
3.3V
8
OH/Fan Fail LED
1. OH/Fan Fail LED
2. NIC1 LED
3. NIC2 LED
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